mnp13 wrote:I was told (I can't remember by who) that using running cold water is the best way to cool them off. Standing water will qickly heat up on the skin's surface. Wetting them down in the shade and then letting a hose run on their belly and back legs does the job.
Whoever told you that was giving good advice.
Running water that is cool but not super cold is the best. Run the water over the back of your hand or forearm and it should be cool to moderately cold.
Wetting them down and putting them in the shade allows the water to evaporate and that's how they cool down.
The groin, back of legs, and belly have thousands of blood vessels that regulate heat. Which is why these areas are very important to when your dog is very hot. By cooling them off we let them catch up and pant off excess heat quicker.
Another tip is if you can put them in the shade just off the ground. This way the air can flow under the dog and evaporate the water we put on their legs, belly and groin faster.